Element 4WD L4-2.4L (2004)
Control Module: Service and Repair
How to Update the PCM
How to Update the PCM
NOTE:
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To ensure the latest program is installed, update a PCM whenever the PCM is substituted or replaced. You cannot update a PCM with the program
it already has. It will only accept a new program.
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Before you update the PCM, make sure the vehicle's battery is fully charged. To prevent PCM damage, do not operate any electrical system; audio
system, brakes, air conditioning, power windows, moonroof, and door locks, during the update.
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If you need to diagnose the Honda interface module (HIM) because the HIM's red (#3) light came on or was flashing during the update, leave the
ignition switch in the ON (II) position when you disconnect the HIM from the DLC. This will prevent PCM damage.
1. Turn the ignition switch ON (II). Do not start the engine.
2. Connect the Honda interface module (HIM) to the DLC located under the left end of the dash.
3. Update the PCM according to the procedures described on the HIM label. If the software in the PCM is the latest, replace the PCM.
